Richter scale

[Magaret]

a system used to measure the strength of an earthquake :

[Gregory]

a logarithmic scale of 1 to 10 formerly used to express the magnitude of an earthquake on the basis of the size of seismograph oscillations

[tolikkk]

The Richter Scale is a logarithmic scale used to measure the magnitude or intensity of earthquakes and their corresponding seismic energy. It was developed by Charles F. Richter in 1935. The scale measures the amplitude of seismic waves recorded by seismographs. An increase in one full degree on the scale represents a tenfold increase in measured amplitude and about 31.6 times more energy release.

[LindaArrit]

A value on the Richter scale